int16_t accel_zero_along; /* minor version 15 */
int16_t accel_zero_across; /* minor version 15 */
int16_t accel_zero_through; /* minor version 15 */
int16_t accel_zero_along; /* minor version 15 */
int16_t accel_zero_across; /* minor version 15 */
int16_t accel_zero_through; /* minor version 15 */